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Finding the Third Proportional to 34,420 and 48,726

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Solution

The third proportional to 34,420 and 48,726 is: 68,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,420 : 48,726 = 48,726 : x
  2. Step 2: Convert to fraction form
    34,420/48,726 = 48,726/x
  3. Step 3: Cross multiply
    34,420x = 48,726 × 48,726
  4. Step 4: Simplify right side
    34,420x = 2,374,223,076
  5. Step 5: Solve for x
    x = 2,374,223,076/34,420
  6. Step 6: Final answer
    x = 68,978.01

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.